Renardson, 21, of Holyoke, had been charged in Hampden Superior Court with the misdemeanor in relation to a crash which claimed the life of Thomas P. Monahan of Holyoke.

Another woman, Maureen Healy, 31, of Holyoke, still faces charges of manslaughter by motor vehicle and motor vehicle homicide while under the influence of alcohol and reckless driving in the death of Monahan.

In the document dropping the charge against Renardson, Assistant District Attorney Melissa G. Doran wrote that the state “does not believe it can sustain its burden and proceed with this matter at this time.”

Doran said if further investigation yields additional evidence the state could pursue the charge, or other appropriate charges in the future.

Mastroianni said the reason for this action now is that the State Police accident reconstruction report was completed. The decision was made to stop the prosecution of Renardson based on what the report reflected, he said.

Monahan, of 144 Lincoln St., was fatally injured June 4, 2011, as he came to the aide of Healy who crashed her car into a parked vehicle in front of his house shortly before midnight. Her car came to rest lying on its passenger side in the road.

As Monahan tended to Healy, a second car, driven by Renardson, came up Lincoln Avenue and crashed into Healy’s overturned vehicle. The impact sent Healy’s car into Monahan, police said. He died two days later.